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Main Cloud Types
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Other Clouds
- Arcus
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- 'Supercilium' (not official classification)
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- Tuba / Twister
- Uncinus
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- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
Iridescence over Lochbuie, United States
Sand dunes that appear to almost meet the clouds above, spotted at Parque Nacional dos Lencois Maranhenses, Brazil
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Stratocumulus undulatus over Estrella Foothills, Arizona, US
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Virga over Glossop, England
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Cumulus clouds over Mahajeran, Iran
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Early dawn near Lienden, Netherlands
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A purple hue over Raleigh, North Carolina, US
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Appreciating the sunset and picturesque clouds over San Francisco Bay, California, US
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A storm system with an "explosion of clouds and colour", as Ruth described, spotted facing north with the Mission Mountain Range to the right, near Charlo, Montana, US
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A cloud "flower" over the Salish Sea, spotted from Helliwell Provincial Park, Hornby Island, British Columbia, Canada
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A surfer's view of an imposing storm on the horizon, spotted near Boca Raton, Florida, US
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A colourful display of what appears to be a circumhorizon arc, spotted over Newcastle, New South Wales, Australia
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Sunrise with altocumulus lenticularis and pileus over the Adirondack Mountains, near Vermontville, New York, US
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